Phys. Rev. C
73,
045205
(2006)
[22 pages]
Measurement of the deuteron structure function F2 in the resonance region and evaluation of its moments
M. Osipenko et al. CLAS Collaboration
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M. Osipenko1,2, G. Ricco1, S. Simula3, M. Battaglieri1, M. Ripani1, G. Adams31, P. Ambrozewicz13, M. Anghinolfi1, B. Asavapibhop25, G. Asryan40, G. Audit8, H. Avakian18,35, H. Bagdasaryan29, N. Baillie39, J. P. Ball4, N. A. Baltzell34, S. Barrow14, V. Batourine23, K. Beard22, I. Bedlinskiy21, M. Bektasoglu28,*, M. Bellis31,6, N. Benmouna15, A. S. Biselli31,6, B. E. Bonner32, S. Bouchigny35,19, S. Boiarinov21,35, R. Bradford6, D. Branford11, W. K. Brooks35, S. Bültmann29, V. D. Burkert35, C. Butuceanu39, J. R. Calarco26, S. L. Careccia29, D. S. Carman28, A. Cazes34, S. Chen14, P. L. Cole35,17, A. Coleman39,†, P. Coltharp14, D. Cords35,‡, P. Corvisiero1, D. Crabb38, J. P. Cummings31, E. De Sanctis18, R. DeVita1, P. V. Degtyarenko35, H. Denizli30, L. Dennis14, A. Deur35, K. V. Dharmawardane29, C. Djalali34, G. E. Dodge29, J. Donnelly16, D. Doughty9,35, P. Dragovitsch14, M. Dugger4, S. Dytman30, O. P. Dzyubak34, H. Egiyan39,35,§, K. S. Egiyan40, L. Elouadrhiri9,35, A. Empl31, P. Eugenio14, R. Fatemi38, G. Fedotov2, R. J. Feuerbach6,35, T. A. Forest29, H. Funsten39, M. Garçon8, G. Gavalian29, G. P. Gilfoyle33, K. L. Giovanetti22, F. X. Girod8, J. T. Goetz5, E. Golovatch1,**, C. I. O. Gordon16, R. W. Gothe34, K. A. Griffioen39, M. Guidal19, M. Guillo34, N. Guler29, L. Guo35, V. Gyurjyan35, C. Hadjidakis19, R. S. Hakobyan7, J. Hardie9,35, D. Heddle9,35, F. W. Hersman26, K. Hicks28, I. Hleiqawi28, M. Holtrop26, J. Hu31, M. Huertas34, C. E. Hyde-Wright29, Y. Ilieva15, D. G. Ireland16, B. S. Ishkhanov2, M. M. Ito35, D. Jenkins37, H. S. Jo19, K. Joo38,35,10, H. G. Juengst29, J. D. Kellie16, M. Khandaker27, K. Y. Kim30, K. Kim23, W. Kim23, A. Klein29, F. J. Klein35,13,7, A. V. Klimenko29, M. Klusman31, M. Kossov21, L. H. Kramer13,35, V. Kubarovsky31, J. Kuhn31,6, S. E. Kuhn29, J. Lachniet6, J. M. Laget8, J. Langheinrich34, D. Lawrence25, T. Lee26, Ji Li31, A. C. S. Lima15, K. Livingston16, K. Lukashin35,7, J. J. Manak35, C. Marchand8, S. McAleer14, B. McKinnon16, J. W. C. McNabb6, B. A. Mecking35, S. Mehrabyan30, J. J. Melone16, M. D. Mestayer35, C. A. Meyer6, K. Mikhailov21, R. Minehart38, M. Mirazita18, R. Miskimen25, V. Mokeev35,2, L. Morand8, S. A. Morrow19,8, J. Mueller30, G. S. Mutchler32, P. Nadel-Turonski15, J. Napolitano31, R. Nasseripour13,††, G. Nefedov2, S. Niccolai15,19, G. Niculescu28,22, I. Niculescu15,35,22, B. B. Niczyporuk35, R. A. Niyazov35, M. Nozar35, G. V. O'Rielly15, A. I. Ostrovidov14, K. Park23, E. Pasyuk4, S. A. Philips15, J. Pierce38, N. Pivnyuk21, D. Pocanic38, O. Pogorelko21, E. Polli18, S. Pozdniakov21, B. M. Preedom34, J. W. Price5, Y. Prok38,35,‡‡, D. Protopopescu26,16, L. M. Qin29, B. A. Raue13,35, G. Riccardi14, B. G. Ritchie4, F. Ronchetti18, G. Rosner16, P. Rossi18, D. Rowntree24, P. D. Rubin33, F. Sabatié8, C. Salgado27, J. P. Santoro37,35, V. Sapunenko1,35, R. A. Schumacher6, V. S. Serov21, Y. G. Sharabian35, J. Shaw25, A. V. Skabelin24, E. S. Smith35, L. C. Smith38, D. I. Sober7, A. Stavinsky21, S. S. Stepanyan23, S. Stepanyan35,40, B. E. Stokes14, P. Stoler31, S. Strauch15, R. Suleiman24, M. Taiuti1, S. Taylor32, D. J. Tedeschi34, U. Thoma35,20,12,a, R. Thompson30, A. Tkabladze28, L. Todor6, C. Tur34, M. Ungaro31,10, M. F. Vineyard36,33, A. V. Vlassov21, L. B. Weinstein29, D. P. Weygand35, M. Williams6, E. Wolin35, M. H. Wood34,b, A. Yegneswaran35, J. Yun29, L. Zana26, and J. Zhang29 (CLAS Collaboration)
1INFN, Sezione di Genova, 16146 Genova, Italy
2Moscow State University, General Nuclear Physics Institute, RU-119899 Moscow, Russia
3Università di ROMA III, 00146 Roma, Italy
4Arizona State University, Tempe, Arizona 85287-1504, USA
5University of California at Los Angeles, Los Angeles, California 90095-1547, USA
6Carnegie Mellon University, Pittsburgh, Pennsylvania 15213, USA
7Catholic University of America, Washington, D.C. 20064, USA
8CEA-Saclay, Service de Physique Nucléaire, F91191 Gif-sur-Yvette,Cedex, France
9Christopher Newport University, Newport News, Virginia 23606, USA
10University of Connecticut, Storrs, Connecticut 06269, USA
11Edinburgh University, Edinburgh EH9 3JZ, United Kingdom
12Emmy-Noether Foundation, Germany
13Florida International University, Miami, Florida 33199, USA
14Florida State University, Tallahassee, Florida 32306, USA
15The George Washington University, Washington, D.C. 20052, USA
16University of Glasgow, Glasgow G12 8QQ, United Kingdom
17Idaho State University, Pocatello, Idaho 83209, USA
18INFN, Laboratori Nazionali di Frascati, Frascati, Italy
19Institut de Physique Nucleaire ORSAY, Orsay, France
20Institute für Strahlen und Kernphysik, Universität Bonn, Germany
21Institute of Theoretical and Experimental Physics, Moscow, RU-117259, Russia
22James Madison University, Harrisonburg, Virginia 22807, USA
23Kyungpook National University, Daegu 702-701, South Korea
24Massachusetts Institute of Technology, Cambridge, Massachusetts 02139-4307, USA
25University of Massachusetts, Amherst, Massachusetts 01003, USA
26University of New Hampshire, Durham, New Hampshire 03824-3568, USA
27Norfolk State University, Norfolk, Virginia 23504, USA
28Ohio University, Athens, Ohio 45701, USA
29Old Dominion University, Norfolk, Virginia 23529, USA
30University of Pittsburgh, Pittsburgh, Pennsylvania 15260, USA
31Rensselaer Polytechnic Institute, Troy, New York 12180-3590, USA
32Rice University, Houston, Texas 77005-1892, USA
33University of Richmond, Richmond, Virginia 23173, USA
34University of South Carolina, Columbia, South Carolina 29208, USA
35Thomas Jefferson National Accelerator Facility, Newport News, Virginia 23606, USA
36Union College, Schenectady, New York 12308, USA
37Virginia Polytechnic Institute and State University, Blacksburg, Virginia 24061-0435, USA
38University of Virginia, Charlottesville, Virginia 22901, USA
39College of William and Mary, Williamsburg, Virginia 23187-8795, USA
40Yerevan Physics Institute, 375036 Yerevan, Armenia
Received 2 June 2005; published 10 April 2006
Inclusive electron scattering off the deuteron has been measured to extract the deuteron structure function F2 with the CEBAF Large Acceptance Spectrometer (CLAS) at the Thomas Jefferson National Accelerator Facility. The measurement covers the entire resonance region from the quasielastic peak up to the invariant mass of the final-state hadronic system W≃2.7 GeV with four-momentum transfers Q2 from 0.4 to 6 (GeV/c)2. These data are complementary to previous measurements of the proton structure function F2 and cover a similar two-dimensional region of Q2 and Bjorken variable x. Determination of the deuteron F2 over a large x interval including the quasielastic peak as a function of Q2, together with the other world data, permit a direct evaluation of the structure function moments for the first time. By fitting the Q2 evolution of these moments with an OPE-based twist expansion we have obtained a separation of the leading twist and higher twist terms. The observed Q2 behavior of the higher twist contribution suggests a partial cancelation of different higher twists entering into the expansion with opposite signs. This cancelation, found also in the proton moments, is a manifestation of the “duality” phenomenon in the F2 structure function.
© 2006 The American Physical Society
URL:
http://link.aps.org/doi/10.1103/PhysRevC.73.045205
DOI:
10.1103/PhysRevC.73.045205
PACS:
12.38.Cy, 12.38.Lg, 12.38.Qk, 13.60.Hb
*Current address: Sakarya University, Sakarya, Turkey. †Current address: Systems Planning and Analysis, Alexandria, Virginia 22311. ‡Deceased. §Current address: University of New Hampshire, Durham, New Hampshire 03824-3568. **Current address: Moscow State University, General Nuclear Physics Institute, 119899 Moscow, Russia. ††Current address: University of South Carolina, Columbia, South Carolina 29208. ‡‡Current address: Massachusetts Institute of Technology, Cambridge, Massachusetts 02139-4307. aCurrent address: Physikalisches Institut der Universitaet Giessen, 35392 Giessen, Germany. bCurrent address: University of Massachusetts, Amherst, Massachusetts 01003.
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